The amp sound reather good, i donīt have a speaker that would make the actual sound justice, so i need to get RMAA and install a M-Audio Audiophile USB soundcard on the laptop to get a line in, since the laptop soundcard doesent have one.

I also need to find my T106-2 cores to replace this crappy -26 material one.

The measurement errors turned out to be an unknown mic boost on the line input, the beeping coming from the amp on low freqs turned out to be the signal generator because it was also hearable in the laptop speakers.

Anyways i built a stereo version of my little amp today, pics are here.